Really. According to Cheng Yitong's information in official website, Mr. Cheng Yitong Niu is an experienced education expert. His teaching content is logical and lively, which is very popular with students. In addition, Mr. Niu also actively participated in various teacher training and academic seminars to continuously improve his teaching level and quality. So, Mr. Cheng Yi Tong Niu is true. Chengyitong School is an online education institution with formal registration qualification. Its courses cover vocational skills training in many industries. It has a professional teaching team of finance and marketing, providing high-quality teaching services and course content, which has been unanimously recognized by students.